feat: add UserContextMenuInteraction and MessageContextMenuInteraction (#7003)

Co-authored-by: Rodry <38259440+ImRodry@users.noreply.github.com>
Co-authored-by: Suneet Tipirneni <77477100+suneettipirneni@users.noreply.github.com>
Co-authored-by: Vlad Frangu <kingdgrizzle@gmail.com>
Co-authored-by: GrapeColor <grapecolor@users.noreply.github.com>

src/structures/Interaction.js

@@ -1,7 +1,7 @@
 'use strict';
 
 const Base = require('./Base');
-const { InteractionTypes, MessageComponentTypes } = require('../util/Constants');
+const { InteractionTypes, MessageComponentTypes, ApplicationCommandTypes } = require('../util/Constants');
 const Permissions = require('../util/Permissions');
 const SnowflakeUtil = require('../util/SnowflakeUtil');
 
@@ -160,6 +160,22 @@ class Interaction extends Base {
     return InteractionTypes[this.type] === InteractionTypes.APPLICATION_COMMAND && typeof this.targetId !== 'undefined';
   }
 
+  /**
+   * Indicates whether this interaction is a {@link UserContextMenuInteraction}
+   * @returns {boolean}
+   */
+  isUserContextMenu() {
+    return this.isContextMenu() && ApplicationCommandTypes[this.targetType] === ApplicationCommandTypes.USER;
+  }
+
+  /**
+   * Indicates whether this interaction is a {@link MessageContextMenuInteraction}
+   * @returns {boolean}
+   */
+  isMessageContextMenu() {
+    return this.isContextMenu() && ApplicationCommandTypes[this.targetType] === ApplicationCommandTypes.MESSAGE;
+  }
+
   /**
    * Indicates whether this interaction is an {@link AutocompleteInteraction}
    * @returns {boolean}

src/structures/MessageContextMenuInteraction.js

@@ -0,0 +1,20 @@
+'use strict';
+
+const ContextMenuInteraction = require('./ContextMenuInteraction');
+
+/**
+ * Represents a message context menu interaction.
+ * @extends {ContextMenuInteraction}
+ */
+class MessageContextMenuInteraction extends ContextMenuInteraction {
+  /**
+   * The message this interaction was sent from
+   * @type {Message|APIMessage}
+   * @readonly
+   */
+  get targetMessage() {
+    return this.options.getMessage('message');
+  }
+}
+
+module.exports = MessageContextMenuInteraction;

src/structures/UserContextMenuInteraction.js

@@ -0,0 +1,29 @@
+'use strict';
+
+const ContextMenuInteraction = require('./ContextMenuInteraction');
+
+/**
+ * Represents a user context menu interaction.
+ * @extends {ContextMenuInteraction}
+ */
+class UserContextMenuInteraction extends ContextMenuInteraction {
+  /**
+   * The user this interaction was sent from
+   * @type {User}
+   * @readonly
+   */
+  get targetUser() {
+    return this.options.getUser('user');
+  }
+
+  /**
+   * The member this interaction was sent from
+   * @type {?(GuildMember|APIGuildMember)}
+   * @readonly
+   */
+  get targetMember() {
+    return this.options.getMember('user');
+  }
+}
+
+module.exports = UserContextMenuInteraction;